[binutils-gdb] libctf: actually close bfds we have opened

[gdb-buildbot@sergiodj.net]

*** TEST RESULTS FOR COMMIT f046147d59aab0c8b6f00cd182f34b42ac8915e8 ***

commit f046147d59aab0c8b6f00cd182f34b42ac8915e8
Author:     Nick Alcock <nick.alcock@oracle.com>
AuthorDate: Mon Jul 29 17:02:48 2019 +0100
Commit:     Nick Alcock <nick.alcock@oracle.com>
CommitDate: Thu Oct 3 17:04:55 2019 +0100

    libctf: actually close bfds we have opened
    
    When we do a ctf_fdopen, we open things via bfd_fdopenr and set up a
    hook to close the bfd again... but then we never actually call that hook
    from anywhere, so we eventually leak every bfd we open.
    
    Fix this by calling the hook (if set) in ctf_arc_close.
    
    New in v3.
    
    libctf/
            * ctf-archive.c (ctf_arc_close): Call ctfi_bfd_close if set.
            * ctf-open-bfd.c (ctf_bfdclose): Fix comment.

diff --git a/libctf/ChangeLog b/libctf/ChangeLog
index 852ad6267c..ff9e6e52d2 100644
--- a/libctf/ChangeLog
+++ b/libctf/ChangeLog
@@ -1,3 +1,8 @@
+2019-07-30  Nick Alcock  <nick.alcock@oracle.com>
+
+	* ctf-archive.c (ctf_arc_close): Call ctfi_bfd_close if set.
+	* ctf-open-bfd.c (ctf_bfdclose): Fix comment.
+
 2019-07-30  Nick Alcock  <nick.alcock@oracle.com>
 
 	* ctf-open-bfd.c (ctf_fdopen): Call bfd_set_cacheable.
diff --git a/libctf/ctf-archive.c b/libctf/ctf-archive.c
index 8de11d6d58..979641cc1e 100644
--- a/libctf/ctf-archive.c
+++ b/libctf/ctf-archive.c
@@ -436,6 +436,8 @@ ctf_arc_close (ctf_archive_t *arc)
   free ((void *) arc->ctfi_symsect.cts_data);
   /* Do not free the ctfi_strsect: it is bound to the bfd.  */
   free (arc->ctfi_data);
+  if (arc->ctfi_bfd_close)
+    arc->ctfi_bfd_close (arc);
   free (arc);
 }
 
diff --git a/libctf/ctf-open-bfd.c b/libctf/ctf-open-bfd.c
index 1083c87608..d17b72d2f0 100644
--- a/libctf/ctf-open-bfd.c
+++ b/libctf/ctf-open-bfd.c
@@ -66,7 +66,7 @@ ctf_new_archive_internal (int is_archive, struct ctf_archive *arc,
   return arci;
 }
 
-/* Free the BFD bits of a CTF file on ctf_file_close().  */
+/* Free the BFD bits of a CTF file on ctf_arc_close().  */
 
 static void
 ctf_bfdclose (struct ctf_archive_internal *arci)